The nutritional value for human retina of lipids in Gou Qi Zi
Aims: To investigate whether Gou Qi Zi contains sufficient carotenoids and fatty acids to supply the special lipid requirements of the human retina.
Materials and methods: Lipids were extracted from Gou Qi Zi by ethanol-hexane, then separated on a silica column and eluted by dioxane-hexane. The eluant was monitored by a photodiode array detector followed by a mass spectrometry detector.
Results: Before hydrolysis, only one pigmented lipid was detected in the chromatogram. The molecular size was identical to that of dipalmityl zeaxanthin. The major non-pigmented lipids have the molecular size of triglycerides and diglycerides. After hydrolysis, a marked increase in oleic, linoleic acid, and long chain fatty acids with 22 and 24 carbons was observed.
Conclusion: The lipid content in Gou Qi Zi matches the specific requirements of the human retina for long chain polyunsaturated fatty acids and zeaxanthin.
How to Cite
The Journal has a fully Open Access policy and publishes all articles under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. For any use other than that permitted by this license, written permission must be obtained from the Journal.